[J] Oral

A (Atmospheric and Hydrospheric Sciences ) » A-OS Ocean Sciences & Ocean Environment

[A-OS17] Marine microbial ecology

Tue. May 27, 2025 3:30 PM - 5:00 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

convener:Tatsuhiko Hoshino(Japan Agency for Marine-Earth Science and Technology), Susumu Yoshizawa(The University of Tokyo), Yosuke Yamada(JAMSTEC Japan Agency for Marine-Earth Science and Technology), Chairperson:Tatsuhiko Hoshino(Japan Agency for Marine-Earth Science and Technology), Susumu Yoshizawa(The University of Tokyo), Yosuke Yamada(JAMSTEC Japan Agency for Marine-Earth Science and Technology)

Marine microorganisms play a crucial role in the biogeochemical cycles of carbon, nitrogen and other elements, supporting ecosystem functions on a global scale. Understanding the diverse biological processes carried out by microorganisms - from primary production and decomposition of organic matter to nitrogen fixation - is essential for understanding the marine environment and predicting climate change. Furthermore, understanding the responses of microbial communities to environmental change is key to assessing resilience or recovery capacity, but also the resistance or endurance of ecosystems. This session broadly invites research on the diversity, function and dynamic interactions of marine microorganisms with their environment, with the aim of delving deeper into the immeasurable role that microorganisms play in the Earth's ecosystem.

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3:30 PM - 3:45 PM

[AOS17-07] Diel Patterns of Marine Prokaryotes Investigated by High-Resolution Sampling at the Kuroshio Extension Observatory Station

★Invited Papers

*Kaho Mori^1,2, Yu Nakajima^3,4, Masumi Hasegawa-Takano⁴, Kento Tominaga¹, Satoshi Nishino^1,2, Chunqi Jiang², Taichi Yokokawa⁴, Chiho Sukigara⁵, Shinsuke Kawagucci⁶, Susumu Yoshizawa^1,2 (1.Graduate School of Frontier Science, The University of Tokyo, 2.Department of Marine Ecosystem Science, Atmosphere and Ocean Research Institute, The University of Tokyo, 3.Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology, 4.Institute for Extra-cutting-edge Science and Technology Avant-garde Research, Japan Agency for Marine-Earth Science and Technology, 5.Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, 6.SIP National Platform for Innovative Ocean Developments, Japan Agency for Marine-Earth Science and Technology)

3:45 PM - 4:00 PM

[AOS17-08] Phylogeny and distribution of prokaryotes involved in mercury speciation in the western North Pacific

*Yuya Tada¹, Kohji Marumoto¹, Ryota Nakajima², Minoru Kitamura², Akinori Takeuchi³, Hajime Obata⁴ (1.National Institute for Minamata Disease, 2.Japan Agency for Marine-Earth Science and Technology, 3.National Institute for Environmental Studies, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)

4:00 PM - 4:15 PM

[AOS17-09] Transition of microbial communities in surface sediments during whale-fall decomposition

*Moe Kato¹, Norihisa Matsuura², Robert Jenkins² (1.The Kyushu University Museum, 2.Faculty of Geosciences and Civil Engineering, Kanazawa University)

4:15 PM - 4:30 PM

[AOS17-10] Heterogeneous cellular phycoerythrin allocation in the unicellular nitrogen-fixing cyanobacterium, Crocosphaera watsonii

*Takako Masuda^1,2, Grzegorz Konert^2,3, Radek Kaňa², Ondřej Prásil² (1.FRA, 2.CAS, 3.Univ. Turku)

4:30 PM - 4:45 PM

[AOS17-11] Microbial community analysis of marine sediments in the inner Tokyo Bay

*Takeshi Terahara¹ (1.Tokyo University of Marine Science and Technology)

4:45 PM - 5:00 PM

[AOS17-12] Exploring microbial diversity and carbon storage capacity of mangrove sediments through spatiotemporal studies

*Masumi Hasegawa-Takano¹, Yohei Matsui², Miho Hirai¹, Karin Inoue³, Tsuyoshi Takano⁴, Yu Nakajima⁵, Susumu Yoshizawa^6,7, Yosuke Nishimura⁵ (1.X-star, JAMSTEC, 2.RIGC, JAMSTEC, 3.Mie University, 4.Meguro Parasitol. Mus., 5.MRU, JAMSTEC, 6.AORI, UTokyo, 7.Grad. Sch. Front. Sci., UTokyo)

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